Keyboard



FIG. 1 is a perspective view of a keyboard in accordance with the present design.

FIG. 2 is a front view for the keyboard.

FIG. 3 is a rear view for the keyboard.

FIG. 4 is a left side view for the keyboard.

FIG. 5 is a right side view for the keyboard.

FIG. 6 is a top view for the keyboard.

FIG. 7 is a bottom view for the keyboard.

FIG. 8 is an alternative rear view for the keyboard.

FIG. 9 is an alternative bottom view for the keyboard.

FIG. 10 is an alternative left side view for the keyboard; and,

FIG. 11 is an alternative right side view for the keyboard.

The broken lines are shown in the figures for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a keyboard, substantially as shown and described. 